Coenagrion pulchellum (Vander Linden, 1825)
Common name: Variable Damselfly
Preferred environment: fens, mesotrophic pools and lakes and coastal drainage ditches. In Ireland most abundant on mesotrophic pools and small sheltered lakes. Often abundant on cutover raised bogs.
Flight period: beginning of April to mid-August. In Ireland from the beginning of May to the beginning of August.
Adult habitat and habits: adults stay close to breeding sites resting and feeding in marginal and surrounding vegetation. Mating happens in surrounding vegetation.
Oviposition site and behaviour: pairs arrive at oviposition sites in tandem. Female oviposits in plant tissues, including old leaves of water lilies, Elodea spp, Mentha aquatica and Potamogeton spp.
Larval habitat and habits: eggs hatch after c 1 month. Larval development in south of range completed in 12 months.
Emergence behaviour: on marginal vegetation
Range: central Europe. Absent from most of Iberia, southern Italy, Greece and Mediterranean islands. In Scandinavia as far north as central Finland.
Determination of adults: species is keyed and diagnostic characters of both sexes are figured in Askew (1988). Adults are illustrated in colour in Askew (1988) and Brooks (1997).
Determination of larvae: keys to mature larvae in Askew (1988), Brooks (1997) and Norling and Sahlen (1997).
|Nelson, B., Thompson, R. & Morrow, C., 2000 (May 2). [In] DragonflyIreland http://www.ulstermuseum.org.uk/dragonflyireland/|